Home / 5,191.70-7,164.58-2,833.86

Finding the Fourth Proportional to 5,191.70, 7,164.58 and 2,833.86

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Solution

The fourth proportional to 5,191.70, 7,164.58 and 2,833.86 is: 3,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.70 : 7,164.58 = 2,833.86 : x
  2. Step 2: Convert to fraction form
    5,191.70/7,164.58 = 2,833.86/x
  3. Step 3: Cross multiply
    5,191.70x = 7,164.58 × 2,833.86
  4. Step 4: Simplify right side
    5,191.70x = 20,303,409.59
  5. Step 5: Solve for x
    x = 20,303,409.59/5,191.70
  6. Step 6: Final answer
    x = 3,910.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.